Excerpt: "...the observation that male mice produce elaborate sequences of ultrasonic vocalizations ("˜song') when exposed to female mice or their scents has sparked a debate as to whether these sounds are"”in terms of their structure and function"”analogous to bird song."

I've previously posted to other forums with regard to research on the importance of avian olfaction, which is only recently being addressed by ethologists, many of who seem to prefer avian models of human behavior.

The relative salience of olfactory/pheromonal cues in birds may be comparable to the analogous birdsong in mice. If so, there is now a starting point to compare animal models of biologically based olfactory/pheromonal conditioning using avian species, and at least one species of "singing" mammal.

I doubt that human behavior will continue to be compared to the behavior of avian species if it becomes more clear that two biologically based animal models of behavior are unlikely. In any case, we are mammals, not birds.